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Term Information

Accession
GO:0036261
Name
7-methylguanosine cap hypermethylation
Ontology
biological_process
Synonyms
2,2,7-trimethylguanosine cap formation, TMG cap formation, conversion of m(7)G to m(3)G, m(7)G cap hypermethylation, hypermethylation of snRNA cap, hypermethylation of snoRNA cap, snRNA capping, snoRNA capping
Alternate IDs
None
Definition
Hypermethylation of the 7-(mono)methylguanosine (m(7)G) cap structure at the 2' position of the guanosine residue to convert a mono-methylated cap to a 2,2,7-trimethylguanosine cap structure. This type of cap modification occurs on small nuclear RNAs (snRNAs) and small nucleolar RNAs (snoRNAs) and is dependent on prior guanine-N7 methylation. Source: GOC:krc, GOC:BHF, PMID:11983179, GOC:bf, GOC:mah, GOC:rl, PMID:18775984
Comment
None
History
See term history for GO:0036261 at QuickGO
Subset
None
Feedback
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Graph of GO:0036261

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Parents of 7-methylguanosine cap hypermethylation (GO:0036261)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
7-methylguanosine cap hypermethylation [is_a relation] is_a  RNA methylation (GO:0001510)
7-methylguanosine cap hypermethylation [is_a relation] is_a  RNA capping (GO:0036260)
Children of 7-methylguanosine cap hypermethylation (GO:0036261)
subject[Reorder by subject] relation[Reorder by relation] object[Reorder by object]
RNA trimethylguanosine synthase activity (GO:0071164) [BFO:0000050 relation] BFO:0000050  7-methylguanosine cap hypermethylation
None.